Hairbrush



FIG. 1 is a front elevational view of a hairbrush showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a perspective view thereof;

FIG. 8 is an enlarged view of the detail identified in FIG. 1;

FIG. 9 is an enlarged view of the detail identified in FIG. 3; and,

FIG. 10 is an enlarged view of the detail identified in FIG. 7.

The circles shown in broken lines in FIGS. 1, 3 and 7 illustrate the bounds of the areas that are shown enlarged in FIGS. 8, 9 and 10. The circles shown in broken lines in FIGS. 8-10 illustrate the bounds of the view. The broken-line circles form no part of the claimed design. 

CLAIM The ornamental design for a hairbrush, as shown and described. 